"use strict"

/**
 * @fileoverview html 解析器
 */
// 配置
var config = {
  // 信任的标签（保持标签名不变）
  trustTags: makeMap("a,abbr,ad,audio,b,blockquote,br,code,col,colgroup,dd,del,dl,dt,div,em,fieldset,h1,h2,h3,h4,h5,h6,hr,i,img,ins,label,legend,li,ol,p,q,ruby,rt,source,span,strong,sub,sup,table,tbody,td,tfoot,th,thead,tr,title,ul,video"),
  // 块级标签（转为 div，其他的非信任标签转为 span）
  blockTags: makeMap("address,article,aside,body,caption,center,cite,footer,header,html,nav,pre,section"),
  // 要移除的标签
  ignoreTags: makeMap("area,base,canvas,embed,frame,head,iframe,input,link,map,meta,param,rp,script,source,style,textarea,title,track,wbr"),
  // 自闭合的标签
  voidTags: makeMap("area,base,br,col,circle,ellipse,embed,frame,hr,img,input,line,link,meta,param,path,polygon,rect,source,track,use,wbr"),
  // html 实体
  entities: {
    lt: "<",
    gt: ">",
    quot: "\"",
    apos: "'",
    ensp: "\u2002",
    emsp: "\u2003",
    nbsp: "\xA0",
    semi: ";",
    ndash: "–",
    mdash: "—",
    middot: "·",
    lsquo: "‘",
    rsquo: "’",
    ldquo: "“",
    rdquo: "”",
    bull: "•",
    hellip: "…"
  },
  // 默认的标签样式
  tagStyle: {
    // #ifndef APP-PLUS-NVUE
    address: "font-style:italic",
    big: "display:inline;font-size:1.2em",
    caption: "display:table-caption;text-align:center",
    center: "text-align:center",
    cite: "font-style:italic",
    dd: "margin-left:40px",
    mark: "background-color:yellow",
    pre: "font-family:monospace;white-space:pre",
    s: "text-decoration:line-through",
    small: "display:inline;font-size:0.8em",
    u: "text-decoration:underline" // #endif

  }
}
var windowWidth = uni.getSystemInfoSync().windowWidth
var blankChar = makeMap(" ,\r,\n,\t,\f")
var idIndex = 0 // #ifdef H5 || APP-PLUS

config.ignoreTags.iframe = void 0
config.trustTags.iframe = true
config.ignoreTags.embed = void 0
config.trustTags.embed = true // #endif
// #ifdef APP-PLUS-NVUE

config.ignoreTags.source = void 0
config.ignoreTags.style = void 0 // #endif

/**
 * @description 创建 map
 * @param {String} str 逗号分隔
 */

function makeMap(str) {
  var map = Object.create(null),
    list = str.split(",")

  for (var i = list.length; i--;) {
    map[list[i]] = true
  }

  return map
}
/**
 * @description 解码 html 实体
 * @param {String} str 要解码的字符串
 * @param {Boolean} amp 要不要解码 &amp;
 * @returns {String} 解码后的字符串
 */


function decodeEntity(str, amp) {
  var i = str.indexOf("&")

  while (i != -1) {
    var j = str.indexOf(";", i + 3),
      code = void 0
    if (j == -1) break

    if (str[i + 1] == "#") {
      // &#123; 形式的实体
      code = parseInt((str[i + 2] == "x" ? "0" : "") + str.substring(i + 2, j))
      if (!isNaN(code)) str = str.substr(0, i) + String.fromCharCode(code) + str.substr(j + 1)
    } else {
      // &nbsp; 形式的实体
      code = str.substring(i + 1, j)
      if (config.entities[code] || code == "amp" && amp) str = str.substr(0, i) + (config.entities[code] || "&") + str.substr(j + 1)
    }

    i = str.indexOf("&", i + 1)
  }

  return str
}
/**
 * @description html 解析器
 * @param {Object} vm 组件实例
 */


function parser(vm) {
  this.options = vm || {}
  this.tagStyle = Object.assign(config.tagStyle, this.options.tagStyle)
  this.imgList = vm.imgList || []
  this.plugins = vm.plugins || []
  this.attrs = Object.create(null)
  this.stack = []
  this.nodes = []
}
/**
 * @description 执行解析
 * @param {String} content 要解析的文本
 */


parser.prototype.parse = function (content) {
  // 插件处理
  for (var i = this.plugins.length; i--;) {
    if (this.plugins[i].onUpdate) content = this.plugins[i].onUpdate(content, config) || content
  }

  new lexer(this).parse(content) // 出栈未闭合的标签

  while (this.stack.length) {
    this.popNode()
  }

  return this.nodes
}
/**
 * @description 将标签暴露出来（不被 rich-text 包含）
 */


parser.prototype.expose = function () {
  // #ifndef APP-PLUS-NVUE
  for (var i = this.stack.length; i--;) {
    var item = this.stack[i]
    if (item.name == "a" || item.c) return
    item.c = 1
  } // #endif

}
/**
 * @description 处理插件
 * @param {Object} node 要处理的标签
 * @returns {Boolean} 是否要移除此标签
 */


parser.prototype.hook = function (node) {
  for (var i = this.plugins.length; i--;) {
    if (this.plugins[i].onParse && this.plugins[i].onParse(node, this) == false) return false
  }

  return true
}
/**
 * @description 将链接拼接上主域名
 * @param {String} url 需要拼接的链接
 * @returns {String} 拼接后的链接
 */


parser.prototype.getUrl = function (url) {
  var domain = this.options.domain

  if (url[0] == "/") {
    // // 开头的补充协议名
    if (url[1] == "/") url = (domain ? domain.split("://")[0] : "http") + ":" + url // 否则补充整个域名
    else if (domain) url = domain + url
  } else if (domain && !url.includes("data:") && !url.includes("://")) url = domain + "/" + url

  return url
}
/**
 * @description 解析样式表
 * @param {Object} node 标签
 * @returns {Object} 
 */


parser.prototype.parseStyle = function (node) {
  var attrs = node.attrs,
    list = (this.tagStyle[node.name] || "").split(";").concat((attrs.style || "").split(";")),
    styleObj = {},
    tmp = ""

  if (attrs.id) {
    // 暴露锚点
    if (this.options.useAnchor) this.expose();else if (node.name != "img" && node.name != "a" && node.name != "video" && node.name != "audio") attrs.id = void 0
  } // 转换 width 和 height 属性


  if (attrs.width) {
    styleObj.width = parseFloat(attrs.width) + (attrs.width.includes("%") ? "%" : "px")
    attrs.width = void 0
  }

  if (attrs.height) {
    styleObj.height = parseFloat(attrs.height) + (attrs.height.includes("%") ? "%" : "px")
    attrs.height = void 0
  }

  for (var i = 0, len = list.length; i < len; i++) {
    var info = list[i].split(":")
    if (info.length < 2) continue
    var key = info.shift().trim().toLowerCase(),
      value = info.join(":").trim() // 兼容性的 css 不压缩

    if (value[0] == "-" && value.lastIndexOf("-") > 0 || value.includes("safe")) tmp += ";".concat(key, ":").concat(value) // 重复的样式进行覆盖
    else if (!styleObj[key] || value.includes("import") || !styleObj[key].includes("import")) {
      // 填充链接
      if (value.includes("url")) {
        var j = value.indexOf("(") + 1

        if (j) {
          while (value[j] == "\"" || value[j] == "'" || blankChar[value[j]]) {
            j++
          }

          value = value.substr(0, j) + this.getUrl(value.substr(j))
        }
      } // 转换 rpx（rich-text 内部不支持 rpx）
      else if (value.includes("rpx")) value = value.replace(/[0-9.]+\s*rpx/g, function ($) {
        return parseFloat($) * windowWidth / 750 + "px"
      })

      styleObj[key] = value
    }
  }

  node.attrs.style = tmp
  return styleObj
}
/**
 * @description 解析到标签名
 * @param {String} name 标签名
 * @private
 */


parser.prototype.onTagName = function (name) {
  this.tagName = this.xml ? name : name.toLowerCase()
  if (this.tagName == "svg") this.xml = true // svg 标签内大小写敏感
}
/**
 * @description 解析到属性名
 * @param {String} name 属性名
 * @private
 */


parser.prototype.onAttrName = function (name) {
  name = this.xml ? name : name.toLowerCase()

  if (name.substr(0, 5) == "data-") {
    // data-src 自动转为 src
    if (name == "data-src" && !this.attrs.src) this.attrName = "src" // a 和 img 标签保留 data- 的属性，可以在 imgtap 和 linktap 事件中使用
    else if (this.tagName == "img" || this.tagName == "a") this.attrName = name // 剩余的移除以减小大小
    else this.attrName = void 0
  } else {
    this.attrName = name
    this.attrs[name] = "T" // boolean 型属性缺省设置
  }
}
/**
 * @description 解析到属性值
 * @param {String} val 属性值
 * @private
 */


parser.prototype.onAttrVal = function (val) {
  var name = this.attrName || "" // 部分属性进行实体解码

  if (name == "style" || name == "href") this.attrs[name] = decodeEntity(val, true) // 拼接主域名
  else if (name.includes("src")) this.attrs[name] = this.getUrl(decodeEntity(val, true));else if (name) this.attrs[name] = val
}
/**
 * @description 解析到标签开始
 * @param {Boolean} selfClose 是否有自闭合标识 />
 * @private
 */


parser.prototype.onOpenTag = function (selfClose) {
  // 拼装 node
  var node = Object.create(null)
  node.name = this.tagName
  node.attrs = this.attrs
  this.attrs = Object.create(null)
  var attrs = node.attrs,
    parent = this.stack[this.stack.length - 1],
    siblings = parent ? parent.children : this.nodes,
    close = this.xml ? selfClose : config.voidTags[node.name] // 转换 embed 标签

  if (node.name == "embed") {
    // #ifndef H5 || APP-PLUS
    var src = attrs.src || "" // 按照后缀名和 type 将 embed 转为 video 或 audio

    if (src.includes(".mp4") || src.includes(".3gp") || src.includes(".m3u8") || (attrs.type || "").includes("video")) node.name = "video";else if (src.includes(".mp3") || src.includes(".wav") || src.includes(".aac") || src.includes(".m4a") || (attrs.type || "").includes("audio")) node.name = "audio"
    if (attrs.autostart) attrs.autoplay = "T"
    attrs.controls = "T" // #endif
    // #ifdef H5 || APP-PLUS

    this.expose() // #endif
  } // #ifndef APP-PLUS-NVUE
  // 处理音视频


  if (node.name == "video" || node.name == "audio") {
    // 设置 id 以便获取 context
    if (node.name == "video" && !attrs.id) attrs.id = "v" + idIndex++ // 没有设置 controls 也没有设置 autoplay 的自动设置 controls

    if (!attrs.controls && !attrs.autoplay) attrs.controls = "T" // 用数组存储所有可用的 source

    node.src = []

    if (attrs.src) {
      node.src.push(attrs.src)
      attrs.src = void 0
    }

    this.expose()
  } // #endif
  // 处理自闭合标签


  if (close) {
    if (!this.hook(node) || config.ignoreTags[node.name]) {
      // 通过 base 标签设置主域名
      if (node.name == "base" && !this.options.domain) this.options.domain = attrs.href // #ifndef APP-PLUS-NVUE
      // 设置 source 标签（仅父节点为 video 或 audio 时有效）
      else if (node.name == "source" && parent && (parent.name == "video" || parent.name == "audio") && attrs.src) parent.src.push(attrs.src) // #endif

      return
    } // 解析 style


    var styleObj = this.parseStyle(node) // 处理图片

    if (node.name == "img") {
      if (attrs.src) {
        // 标记 webp
        if (attrs.src.includes("webp")) node.webp = "T" // data url 图片如果没有设置 original-src 默认为不可预览的小图片

        if (attrs.src.includes("data:") && !attrs["original-src"]) attrs.ignore = "T"

        if (!attrs.ignore || node.webp || attrs.src.includes("cloud://")) {
          for (var i = this.stack.length; i--;) {
            var item = this.stack[i]

            if (item.name == "a") {
              node.a = item.attrs
              break
            } // #ifndef H5 || APP-PLUS


            var style = item.attrs.style || ""

            if (style.includes("flex:") && !style.includes("flex:0") && !style.includes("flex: 0") && (!styleObj.width || !styleObj.width.includes("%"))) {
              styleObj.width = "100% !important"
              styleObj.height = ""

              for (var j = i + 1; j < this.stack.length; j++) {
                this.stack[j].attrs.style = (this.stack[j].attrs.style || "").replace("inline-", "")
              }
            } else if (style.includes("flex") && styleObj.width == "100%") {
              for (var _j = i + 1; _j < this.stack.length; _j++) {
                var _style = this.stack[_j].attrs.style || ""

                if (!_style.includes(";width") && !_style.includes(" width") && _style.indexOf("width") != 0) {
                  styleObj.width = ""
                  break
                }
              }
            } else if (style.includes("inline-block")) {
              if (styleObj.width && styleObj.width[styleObj.width.length - 1] == "%") {
                item.attrs.style += ";max-width:" + styleObj.width
                styleObj.width = ""
              } else item.attrs.style += ";max-width:100%"
            } // #endif


            item.c = 1
          }

          attrs.i = this.imgList.length.toString()

          var _src = attrs["original-src"] || attrs.src // #ifndef H5 || MP-ALIPAY || APP-PLUS || MP-360


          if (this.imgList.includes(_src)) {
            // 如果有重复的链接则对域名进行随机大小写变换避免预览时错位
            var _i = _src.indexOf("://")

            if (_i != -1) {
              _i += 3

              var newSrc = _src.substr(0, _i)

              for (; _i < _src.length; _i++) {
                if (_src[_i] == "/") break
                newSrc += Math.random() > 0.5 ? _src[_i].toUpperCase() : _src[_i]
              }

              newSrc += _src.substr(_i)
              _src = newSrc
            }
          } // #endif


          this.imgList.push(_src) // #ifdef H5 || APP-PLUS

          if (this.options.lazyLoad) {
            attrs["data-src"] = attrs.src
            attrs.src = void 0
          } // #endif

        }
      }

      if (styleObj.display == "inline") styleObj.display = "" // #ifndef APP-PLUS-NVUE

      if (attrs.ignore) {
        styleObj["max-width"] = styleObj["max-width"] || "100%"
        attrs.style += ";-webkit-touch-callout:none"
      } // #endif
      // 设置的宽度超出屏幕，为避免变形，高度转为自动


      if (parseInt(styleObj.width) > windowWidth) styleObj.height = void 0 // 记录是否设置了宽高

      if (styleObj.width) {
        if (styleObj.width.includes("auto")) styleObj.width = "";else {
          node.w = "T"
          if (styleObj.height && !styleObj.height.includes("auto")) node.h = "T"
        }
      }
    } else if (node.name == "svg") {
      siblings.push(node)
      this.stack.push(node)
      this.popNode()
      return
    }

    for (var key in styleObj) {
      if (styleObj[key]) attrs.style += ";".concat(key, ":").concat(styleObj[key].replace(" !important", ""))
    }

    attrs.style = attrs.style.substr(1) || void 0
  } else {
    if (node.name == "pre" || (attrs.style || "").includes("white-space") && attrs.style.includes("pre")) this.pre = node.pre = true
    node.children = []
    this.stack.push(node)
  } // 加入节点树


  siblings.push(node)
}
/**
 * @description 解析到标签结束
 * @param {String} name 标签名
 * @private
 */


parser.prototype.onCloseTag = function (name) {
  // 依次出栈到匹配为止
  name = this.xml ? name : name.toLowerCase()
  var i

  for (i = this.stack.length; i--;) {
    if (this.stack[i].name == name) break
  }

  if (i != -1) {
    while (this.stack.length > i) {
      this.popNode()
    }
  } else if (name == "p" || name == "br") {
    var siblings = this.stack.length ? this.stack[this.stack.length - 1].children : this.nodes
    siblings.push({
      name: name,
      attrs: {}
    })
  }
}
/**
 * @description 处理标签出栈
 * @private
 */


parser.prototype.popNode = function () {
  var node = this.stack.pop(),
    attrs = node.attrs,
    children = node.children,
    parent = this.stack[this.stack.length - 1],
    siblings = parent ? parent.children : this.nodes

  if (!this.hook(node) || config.ignoreTags[node.name]) {
    // 获取标题
    if (node.name == "title" && children.length && children[0].type == "text" && this.options.setTitle) uni.setNavigationBarTitle({
      title: children[0].text
    })
    siblings.pop()
    return
  }

  if (node.pre) {
    // 是否合并空白符标识
    node.pre = this.pre = void 0

    for (var i = this.stack.length; i--;) {
      if (this.stack[i].pre) this.pre = true
    }
  }

  var styleObj = {} // 转换 svg

  if (node.name == "svg") {
    // #ifndef APP-PLUS-NVUE
    var src = "",
      style = attrs.style
    attrs.style = ""
    attrs.xmlns = "http://www.w3.org/2000/svg";

    (function traversal(node) {
      src += "<" + node.name

      for (var item in node.attrs) {
        var val = node.attrs[item]

        if (val) {
          if (item == "viewbox") item = "viewBox"
          src += " ".concat(item, "=\"").concat(val, "\"")
        }
      }

      if (!node.children) src += "/>";else {
        src += ">"

        for (var _i2 = 0; _i2 < node.children.length; _i2++) {
          traversal(node.children[_i2])
        }

        src += "</" + node.name + ">"
      }
    })(node)

    node.name = "img"
    node.attrs = {
      src: "data:image/svg+xml;utf8," + src.replace(/#/g, "%23"),
      style: style,
      ignore: "T"
    }
    node.children = void 0 // #endif

    this.xml = false
    return
  } // #ifndef APP-PLUS-NVUE
  // 转换 align 属性


  if (attrs.align) {
    if (node.name == "table") {
      if (attrs.align == "center") styleObj["margin-inline-start"] = styleObj["margin-inline-end"] = "auto";else styleObj["float"] = attrs.align
    } else styleObj["text-align"] = attrs.align

    attrs.align = void 0
  } // 转换 font 标签的属性


  if (node.name == "font") {
    if (attrs.color) {
      styleObj.color = attrs.color
      attrs.color = void 0
    }

    if (attrs.face) {
      styleObj["font-family"] = attrs.face
      attrs.face = void 0
    }

    if (attrs.size) {
      var size = parseInt(attrs.size)

      if (!isNaN(size)) {
        if (size < 1) size = 1;else if (size > 7) size = 7
        styleObj["font-size"] = ["xx-small", "x-small", "small", "medium", "large", "x-large", "xx-large"][size - 1]
      }

      attrs.size = void 0
    }
  } // #endif
  // 一些编辑器的自带 class


  if ((attrs["class"] || "").includes("align-center")) styleObj["text-align"] = "center"
  Object.assign(styleObj, this.parseStyle(node))

  if (parseInt(styleObj.width) > windowWidth) {
    styleObj["max-width"] = "100%"
    styleObj["box-sizing"] = "border-box"
  } // #ifndef APP-PLUS-NVUE


  if (config.blockTags[node.name]) node.name = "div" // 未知标签转为 span，避免无法显示
  else if (!config.trustTags[node.name] && !this.xml) node.name = "span"
  if (node.name == "a" || node.name == "ad" // #ifdef H5 || APP-PLUS
  || node.name == "iframe" // #endif
  ) this.expose() // #ifdef APP-PLUS
  else if (node.name == "video") {
    var str = "<video style=\"width:100%;height:100%\"" // 空白图占位

    if (!attrs.poster && !attrs.autoplay) attrs.poster = "data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg'/>"

    for (var item in attrs) {
      if (attrs[item]) str += " " + item + "=\"" + attrs[item] + "\""
    }

    if (this.options.pauseVideo) str += " onplay=\"for(var e=document.getElementsByTagName('video'),t=0;t<e.length;t++)e[t]!=this&&e[t].pause()\""
    str += ">"

    for (var _i3 = 0; _i3 < node.src.length; _i3++) {
      str += "<source src=\"" + node.src[_i3] + "\">"
    }

    str += "</video>"
    node.html = str
  } // #endif
  // 列表处理
  else if ((node.name == "ul" || node.name == "ol") && node.c) {
    var types = {
      a: "lower-alpha",
      A: "upper-alpha",
      i: "lower-roman",
      I: "upper-roman"
    }

    if (types[attrs.type]) {
      attrs.style += ";list-style-type:" + types[attrs.type]
      attrs.type = void 0
    }

    for (var _i4 = children.length; _i4--;) {
      if (children[_i4].name == "li") children[_i4].c = 1
    }
  } // 表格处理
  else if (node.name == "table") {
    // cellpadding、cellspacing、border 这几个常用表格属性需要通过转换实现
    var padding = parseFloat(attrs.cellpadding),
      spacing = parseFloat(attrs.cellspacing),
      border = parseFloat(attrs.border)

    if (node.c) {
      // padding 和 spacing 默认 2
      if (isNaN(padding)) padding = 2
      if (isNaN(spacing)) spacing = 2
    }

    if (border) attrs.style += ";border:" + border + "px solid gray"

    if (node.flag && node.c) {
      // 有 colspan 或 rowspan 且含有链接的表格通过 grid 布局实现
      styleObj.display = "grid"

      if (spacing) {
        styleObj["grid-gap"] = spacing + "px"
        styleObj.padding = spacing + "px"
      } // 无间隔的情况下避免边框重叠
      else if (border) attrs.style += ";border-left:0;border-top:0"

      var width = [],
        // 表格的列宽
        trList = [],
        // tr 列表
        cells = [],
        // 保存新的单元格
        map = {}; // 被合并单元格占用的格子

      (function traversal(nodes) {
        for (var _i5 = 0; _i5 < nodes.length; _i5++) {
          if (nodes[_i5].name == "tr") trList.push(nodes[_i5]);else traversal(nodes[_i5].children || [])
        }
      })(children)

      for (var row = 1; row <= trList.length; row++) {
        var col = 1

        for (var j = 0; j < trList[row - 1].children.length; j++, col++) {
          var td = trList[row - 1].children[j]

          if (td.name == "td" || td.name == "th") {
            // 这个格子被上面的单元格占用，则列号++
            while (map[row + "." + col]) {
              col++
            }

            var _style2 = td.attrs.style || "",
              start = _style2.indexOf("width") ? _style2.indexOf(";width") : 0 // 提取出 td 的宽度


            if (start != -1) {
              var end = _style2.indexOf(";", start + 6)

              if (end == -1) end = _style2.length
              if (!td.attrs.colspan) width[col] = _style2.substring(start ? start + 7 : 6, end)
              _style2 = _style2.substr(0, start) + _style2.substr(end)
            }

            _style2 += (border ? ";border:".concat(border, "px solid gray") + (spacing ? "" : ";border-right:0;border-bottom:0") : "") + (padding ? ";padding:".concat(padding, "px") : "") // 处理列合并

            if (td.attrs.colspan) {
              _style2 += ";grid-column-start:".concat(col, ";grid-column-end:").concat(col + parseInt(td.attrs.colspan))
              if (!td.attrs.rowspan) _style2 += ";grid-row-start:".concat(row, ";grid-row-end:").concat(row + 1)
              col += parseInt(td.attrs.colspan) - 1
            } // 处理行合并


            if (td.attrs.rowspan) {
              _style2 += ";grid-row-start:".concat(row, ";grid-row-end:").concat(row + parseInt(td.attrs.rowspan))
              if (!td.attrs.colspan) _style2 += ";grid-column-start:".concat(col, ";grid-column-end:").concat(col + 1) // 记录下方单元格被占用

              for (var k = 1; k < td.attrs.rowspan; k++) {
                map[row + k + "." + col] = 1
              }
            }

            if (_style2) td.attrs.style = _style2
            cells.push(td)
          }
        }

        if (row == 1) {
          var temp = ""

          for (var _i6 = 1; _i6 < col; _i6++) {
            temp += (width[_i6] ? width[_i6] : "auto") + " "
          }

          styleObj["grid-template-columns"] = temp
        }
      }

      node.children = cells
    } else {
      // 没有使用合并单元格的表格通过 table 布局实现
      if (node.c) styleObj.display = "table"
      if (!isNaN(spacing)) styleObj["border-spacing"] = spacing + "px"

      if (border || padding) {
        // 遍历
        (function traversal(nodes) {
          for (var _i7 = 0; _i7 < nodes.length; _i7++) {
            var _td = nodes[_i7]

            if (_td.name == "th" || _td.name == "td") {
              if (border) _td.attrs.style = "border:".concat(border, "px solid gray;").concat(_td.attrs.style || "")
              if (padding) _td.attrs.style = "padding:".concat(padding, "px;").concat(_td.attrs.style || "")
            } else if (_td.children) traversal(_td.children)
          }
        })(children)
      }
    } // 给表格添加一个单独的横向滚动层


    if (this.options.scrollTable && !(attrs.style || "").includes("inline")) {
      var table = Object.assign({}, node)
      node.name = "div"
      node.attrs = {
        style: "overflow:auto"
      }
      node.children = [table]
      attrs = table.attrs
    }
  } else if ((node.name == "td" || node.name == "th") && (attrs.colspan || attrs.rowspan)) {
    for (var _i8 = this.stack.length; _i8--;) {
      if (this.stack[_i8].name == "table") {
        this.stack[_i8].flag = 1 // 指示含有合并单元格

        break
      }
    }
  } // 转换 ruby
  else if (node.name == "ruby") {
    node.name = "span"

    for (var _i9 = 0; _i9 < children.length - 1; _i9++) {
      if (children[_i9].type == "text" && children[_i9 + 1].name == "rt") {
        children[_i9] = {
          name: "div",
          attrs: {
            style: "display:inline-block"
          },
          children: [{
            name: "div",
            attrs: {
              style: "font-size:50%;text-align:start"
            },
            children: children[_i9 + 1].children
          }, children[_i9]]
        }
        children.splice(_i9 + 1, 1)
      }
    }
  } else if (node.c) {
    node.c = 2

    for (var _i10 = node.children.length; _i10--;) {
      if (!node.children[_i10].c || node.children[_i10].name == "table") node.c = 1
    }
  }
  if ((styleObj.display || "").includes("flex") && !node.c) for (var _i11 = children.length; _i11--;) {
    var _item = children[_i11]

    if (_item.f) {
      _item.attrs.style = (_item.attrs.style || "") + _item.f
      _item.f = void 0
    }
  } // flex 布局时部分样式需要提取到 rich-text 外层

  var flex = parent && (parent.attrs.style || "").includes("flex") // #ifdef MP-WEIXIN
  // 检查基础库版本 virtualHost 是否可用
  && !(node.c && wx.getNFCAdapter) // #endif
  // #ifndef MP-WEIXIN || MP-QQ || MP-BAIDU || MP-TOUTIAO
  && !node.c // #endif

  if (flex) node.f = ";max-width:100%" // #endif

  for (var key in styleObj) {
    if (styleObj[key]) {
      var val = ";".concat(key, ":").concat(styleObj[key].replace(" !important", "")) // #ifndef APP-PLUS-NVUE

      if (flex && (key.includes("flex") && key != "flex-direction" || key == "align-self" || styleObj[key][0] == "-" || key == "width" && val.includes("%"))) {
        node.f += val
        if (key == "width") attrs.style += ";width:100%"
      } else // #endif
        attrs.style += val
    }
  }

  attrs.style = attrs.style.substr(1) || void 0
}
/**
 * @description 解析到文本
 * @param {String} text 文本内容
 */


parser.prototype.onText = function (text) {
  if (!this.pre) {
    // 合并空白符
    var trim = "",
      flag

    for (var i = 0, len = text.length; i < len; i++) {
      if (!blankChar[text[i]]) trim += text[i];else {
        if (trim[trim.length - 1] != " ") trim += " "
        if (text[i] == "\n" && !flag) flag = true
      }
    } // 去除含有换行符的空串


    if (trim == " " && flag) return
    text = trim
  }

  var node = Object.create(null)
  node.type = "text"
  node.text = decodeEntity(text)

  if (this.hook(node)) {
    var siblings = this.stack.length ? this.stack[this.stack.length - 1].children : this.nodes
    siblings.push(node)
  }
}
/**
 * @description html 词法分析器
 * @param {Object} handler 高层处理器
 */


function lexer(handler) {
  this.handler = handler
}
/**
 * @description 执行解析
 * @param {String} content 要解析的文本
 */


lexer.prototype.parse = function (content) {
  this.content = content || ""
  this.i = 0 // 标记解析位置

  this.start = 0 // 标记一个单词的开始位置

  this.state = this.text // 当前状态

  for (var len = this.content.length; this.i != -1 && this.i < len;) {
    this.state()
  }
}
/**
 * @description 检查标签是否闭合
 * @param {String} method 如果闭合要进行的操作
 * @returns {Boolean} 是否闭合
 * @private
 */


lexer.prototype.checkClose = function (method) {
  var selfClose = this.content[this.i] == "/"

  if (this.content[this.i] == ">" || selfClose && this.content[this.i + 1] == ">") {
    if (method) this.handler[method](this.content.substring(this.start, this.i))
    this.i += selfClose ? 2 : 1
    this.start = this.i
    this.handler.onOpenTag(selfClose)

    if (this.handler.tagName == "script") {
      this.i = this.content.indexOf("</", this.i)

      if (this.i != -1) {
        this.i += 2
        this.start = this.i
      }

      this.state = this.endTag
    } else this.state = this.text

    return true
  }

  return false
}
/**
 * @description 文本状态
 * @private
 */


lexer.prototype.text = function () {
  this.i = this.content.indexOf("<", this.i) // 查找最近的标签

  if (this.i == -1) {
    // 没有标签了
    if (this.start < this.content.length) this.handler.onText(this.content.substring(this.start, this.content.length))
    return
  }

  var c = this.content[this.i + 1]

  if (c >= "a" && c <= "z" || c >= "A" && c <= "Z") {
    // 标签开头
    if (this.start != this.i) this.handler.onText(this.content.substring(this.start, this.i))
    this.start = ++this.i
    this.state = this.tagName
  } else if (c == "/" || c == "!" || c == "?") {
    if (this.start != this.i) this.handler.onText(this.content.substring(this.start, this.i))
    var next = this.content[this.i + 2]

    if (c == "/" && (next >= "a" && next <= "z" || next >= "A" && next <= "Z")) {
      // 标签结尾
      this.i += 2
      this.start = this.i
      return this.state = this.endTag
    } // 处理注释


    var end = "-->"
    if (c != "!" || this.content[this.i + 2] != "-" || this.content[this.i + 3] != "-") end = ">"
    this.i = this.content.indexOf(end, this.i)

    if (this.i != -1) {
      this.i += end.length
      this.start = this.i
    }
  } else this.i++
}
/**
 * @description 标签名状态
 * @private
 */


lexer.prototype.tagName = function () {
  if (blankChar[this.content[this.i]]) {
    // 解析到标签名
    this.handler.onTagName(this.content.substring(this.start, this.i))

    while (blankChar[this.content[++this.i]]) {
      ;
    }

    if (this.i < this.content.length && !this.checkClose()) {
      this.start = this.i
      this.state = this.attrName
    }
  } else if (!this.checkClose("onTagName")) this.i++
}
/**
 * @description 属性名状态
 * @private
 */


lexer.prototype.attrName = function () {
  var c = this.content[this.i]

  if (blankChar[c] || c == "=") {
    // 解析到属性名
    this.handler.onAttrName(this.content.substring(this.start, this.i))
    var needVal = c == "=",
      len = this.content.length

    while (++this.i < len) {
      c = this.content[this.i]

      if (!blankChar[c]) {
        if (this.checkClose()) return

        if (needVal) {
          // 等号后遇到第一个非空字符
          this.start = this.i
          return this.state = this.attrVal
        }

        if (this.content[this.i] == "=") needVal = true;else {
          this.start = this.i
          return this.state = this.attrName
        }
      }
    }
  } else if (!this.checkClose("onAttrName")) this.i++
}
/**
 * @description 属性值状态
 * @private
 */


lexer.prototype.attrVal = function () {
  var c = this.content[this.i],
    len = this.content.length // 有冒号的属性

  if (c == "\"" || c == "'") {
    this.start = ++this.i
    this.i = this.content.indexOf(c, this.i)
    if (this.i == -1) return
    this.handler.onAttrVal(this.content.substring(this.start, this.i))
  } // 没有冒号的属性
  else for (; this.i < len; this.i++) {
    if (blankChar[this.content[this.i]]) {
      this.handler.onAttrVal(this.content.substring(this.start, this.i))
      break
    } else if (this.checkClose("onAttrVal")) return
  }

  while (blankChar[this.content[++this.i]]) {
    ;
  }

  if (this.i < len && !this.checkClose()) {
    this.start = this.i
    this.state = this.attrName
  }
}
/**
 * @description 结束标签状态
 * @returns {String} 结束的标签名
 * @private
 */


lexer.prototype.endTag = function () {
  var c = this.content[this.i]

  if (blankChar[c] || c == ">" || c == "/") {
    this.handler.onCloseTag(this.content.substring(this.start, this.i))

    if (c != ">") {
      this.i = this.content.indexOf(">", this.i)
      if (this.i == -1) return
    }

    this.start = ++this.i
    this.state = this.text
  } else this.i++
}

module.exports = parser